My attention span is too short, I couldn't read everyone's post.
My vote goes for Lelouch...although I haven't finished watching Code GEASS, I have finished watching Death Note. I hate Light, at first I liked him, because he seemed sane and very tactical, however when he gave up his memories he became a pussy, then when he got the Death Note back he just turned into a sociopath. However the parts of Code GEASS I have seen, have glorified Lelouch (I do have to say I was sad when Surley(?) died) Oh and please excuse my spelling...I'm not a huge fan of them. (To me Death Note started good, but when L died, I lost interest. I had to force myself to keep watching)
Bascially what I got from them is Lelouch was fighting for the erm...(I'm sorry I don't remember the name, but it's the low class people) and Light was fighting for himself.
*Wonders why L wasn't included*